Can anyone tell me what these are please?

[PeTong]

Instead of doing what I did last time, pasting HUGE images in here, I'll post a link to imgur instead and cut out the important bits to put into an attachment https://imgur.com/a/VFjoy.

There's 2 things in total. In images 1, 2 and 3... it's about 0.8cm in size. The thing in picture 4 is about 0.3cm.

Both seem to slowly move about, but I've not seen them moving, just noticed that their location changes.

It's a saltwater tank kept at about 25C and 1.025 Specific gravity. We have no live rocks, it's all plastic in there.

I'm just wondering if anyone knows what they are and if they're gonna cause any problems to the clownfish/dithers we have in there.

Thanks in advance

p.s. apologies in advance for the image quality, I'm shooting through the entire tank to get the pictures so focussing isn't the easiest.

 

[homer1475]

Asternia stars.Part of your CUC and probably came in as a hitchhiker.

 

[PeTong]

Asternia stars.Part of your CUC and probably came in as a hitchhiker.

Thanks

So they're safe to leave in then? We have 5 hermits and 2 snails in the tank too for CUC work...

Do they get very big?

 

[PeTong]

I think we got a small shrimp hitchhiker with the recent additions too, but I've not been able to get a picture of him as he blends in with the sand so well and is hard to find!

 

[JUNBUG361]

+1 on the asternia stars